First and foremost, GE as a company likes to get the most work out of its employees that it can for the amount they pay you. This means two things: first, it means that you may be required to work incredibly long hours -- including nights and weekends -- to get the job done. It also means that your pay probably isn't going to be competitively comprable to colleagues in other companies. This is the payoff you choose when you enter one of the largest companies in the world.
Another issue is that GE is at best inconsistent about employee recognition for hardwork and innovation: This is contrary to the stateed culture and purported focus of managers. I have seen numerous instances where managers have blatently overlooked great projects done by colleagues -- in one instance, the CFO of my division neglected a large cost-savings project because the project corrected a problem the CFO had originally created earlier in the year, and the officer didn't want a spotlight on a problem that was his fault.